Hello,
I have encountered this problem while using Anki on my laptop:
Unfortunately, checking database didnt do anything. Im not very fluent in English so maybe im missing sth but plz help me out bc i have very important exams soon and i basically rely on Anki entirely.
I will be grateful for any kind of prompt
Error
An error occurred. Please use Tools > Check Database to see if that fixes the problem.
If problems persist, please report the problem on our support site. Please copy and paste the information below into your report.
Anki 2.1.56 (07fd88dd) Python 3.9.15 Qt 6.4.0 PyQt 6.4.0
Platform: Windows-10-10.0.19044
Flags: frz=True ao=False sv=2
Add-ons, last update check: 2023-03-12 11:18:39
Caught exception:
Traceback (most recent call last):
File “aqt.webview”, line 43, in cmd
File “aqt.webview”, line 150, in _onCmd
File “aqt.webview”, line 620, in _onBridgeCmd
File “aqt.reviewer”, line 539, in _linkHandler
File “aqt.reviewer”, line 456, in _answerCard
File “anki.scheduler.v2”, line 458, in answerCard
File “anki.scheduler.v2”, line 487, in _answerCard
File “anki.scheduler.v2”, line 840, in _answerRevCard
File “anki.scheduler.v2”, line 857, in _rescheduleLapse
File “anki.scheduler.v2”, line 589, in _moveToFirstStep
File “anki.scheduler.v2”, line 582, in _updateRevIvlOnFail
File “anki.scheduler.v2”, line 870, in _lapseIvl
TypeError: unsupported operand type(s) for *: ‘int’ and ‘NoneType’